package com.example.day08.ex09;

import java.util.Scanner;

/**
 * @author 17976
 */
public class StringBuilderTest02 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入一个字符串：");
        String line = sc.nextLine();
        String s = myReverse(line);
        System.out.println("s:" + s);
    }
    public static String myReverse(String s) {
//String --- StringBuilder --- reverse() --- String
// StringBuilder sb = new StringBuilder(s);
// sb.reverse();
// String ss = sb.toString();
// return ss;
        return new StringBuilder(s).reverse().toString();
    }
}
